Strenuous expiratory efforts in some chronic obstructive pulmonary disease (COPD) patients lim-it the effectiveness of coughing. Why is this so?
a. The accessory muscles of inspiration op-pose the exhalation.
b. All COPD patients have severe abdominal muscle weakness.
c. High expiratory pleural pressures compress the small airways.
d. Strenuous expiration causes the upper air-way to collapse.
ANS: C
In some patients with COPD, the high pleural pressures during a forced cough may compress the smaller airways and limit the cough's effectiveness.
Health Professions
You might also like to view...
The ability to learn and adjust ________________________________ throughout life
Fill in the blank(s) with correct word
Health Professions
Which of the following is a precaution to be taken DURING fire-flow tests?
A. Open all hydrant outlets. B. Shut down traffic in the area. C. Do not stand in front of closed caps. D. Lean over the top of a hydrant when operating.
Health Professions